default arguments python

Published: 14 April 2020
on channel: Tarun Sir

162

In this video you will learn about default argument or default parameters in function in python.

What is Default Parameter Value/ Default Arguments
Python allows us to specify default value for parameters. The default value of parameter is used when we do not pass argument for that parameter. If a function defines default value for some of its parameters then those parameters must appear on right most side in definition.
In the following example we are defining a function greeting() which have parameter name having default value "Bhaarat". If we call the function greeting() without passing argument then it uses default value Bhaarat for parameter name.
def greeting(name="Bhaarat"):
print("Hello Dear",name)
greeting()#Prints Hello Dear Bhaarat
greeting("Khushal")#Prints Hello Dear Khushal

The parameters which have default value , are also called as optional argument.

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